Hybrid system warning! safely stop and do not drive Hyundai dealership in California, keep it over week No answer when they can find a problem for stopping car go forward, only reverse. I was driving 65 miles on heavy traffic suddenly stop on California highway 57. Car was towed to Hyundai dealership near.

- Diamond Bar, CA, USA

Purchased this car brand new in 2017 from a Hyundai dealership. Started having issues with it 2 years later and up to now. The engine light is consistently illuminated, the oil light comes on within about a few weeks of having the oil changed with just local neighborhood driving and I have to have my oil changed every 4-6 weeks when even just driving no more than 20-30 miles a week, the mechanic who does my oil changes stated there is no oil leak but the oil stick keeps coming up BONE DRY which results in costly oil changes on a extremely regular basis. The engine has been and continues to do a very hard almost violent knocking that is so strong it can be seen from the outside of the vehicle and has affected the way i have to drive the car. The engine hesitates to take off and according to several mechanics who have looked at the vehicle it keeps misfiring because of oil pooling in the spark plugs that has been changed on a regular monthly basis now. There is a large amount of smoke that pours from the exhaust when accelerating. This vehicle is a hazard to drive and contacting Hyundai although this model and year is included in the engine recall, yields nothing but a pain as they have informed me, that my -??Vin-?? out of all of the other 2017 Hyundai Sonata-??s isn-??t included in the nationwide recall of my particular vehicle-??. Just my luck? I think not, Hyundai needs to acknowledge the multitude of hazards that they have manufactured and have out on road and properly offer assistance to these vehicle's owners to rectify this issue.

- Henderson, NV, USA

On cold mornings, during the first start of the day, and while going downhill, the internal combustion engine comes on while running on electrical power from the battery. This is understandably to heat up the engine to ideal temperatures. But within a minute, the car gives a hybrid battery error, fully loses power requiring to be stopped immediately. This is obviously dangerous anywhere but particularly downhill. The car requires to be restarted after pulling over 1-3 times until the engine / battery reach ideal temperatures. Then the car runs as expected. The dealership has been unable to diagnose the issue and chalked it up to an unrelated recall - which has been fixed, but the issue still occurs risking the safety of the people inside the car and around.

- Castro Valley, CA, USA

The engine lost power as driver was getting ready to go onto a major toll way, then when was able to regain a little power, was unable to go over 30mph. When was able to get to an independent repair shop to check it, engine knock code appeared, the check engine light only came on once the engine lost power, not prior to. The shop checked oil and the dipstick came out dry! They did not see any obvious leaks, and suggested it be towed to dealership. When towed to nearest dealership the car has been sitting for a week and a half and still not be looked at. The oil had been changed a few months prior and was not close to the miles needed for next change. This could have caused a fire for the car, it could have caused an accident if was not able to get to side of road. This is similar If not exactly the same that has happened to other Hyundai Sonata owners and is causing a lot of hardship for our family to be without this car or a loaner! This appears to be the recall on Hyundai engines that-??s happening to similar models.

- Irving, TX, USA

While driving on surface streets (10-15 MPH) about 5 minutes out from our house, the accelerator stopped working properly and a warning popped up along the lines of "Hybrid HEV warning: Please shut off engine and restart." Since there were no other cars behind us, we were able to thankfully pull over without too much trouble. However, if we had been on a highway this would have been incredibly dangerous, as we would have lost speed quickly and had no safe way to pull over. There were no warnings prior to this happening on that day. The car just sudden stopped working and then lights popped on. Using an OBD reader, the issue code was P0DE7: Hybrid/EV Battery - Cell Voltage High. We are going to the dealer at the earliest appointment to have it looked at, and the car is clearly not safe for anything but surface roads with easy pull-offs. Related Items: A week or so ago, we had an incident where the car was a bit sluggish to accelerate after a right hand turn (e.g., needed to take foot off the gas, then put it back on after a moment to accelerate). However, no check engine light came on and the car ran fine after. A second potential related item was that the expected mileage on battery-only had reduced from about 27 to 23 miles on a full charge. This occurred within the last two months before this issue.

- Torrance, CA, USA

Bought the car in June -??21 and in Oct it started having engine problems (very low oil, shaky idle and hard transitioning gears) When I took to Hyundai Suntrup, 1 spark plug had bust and was covered in oil and dealership couldnt tell why. They replaced spark plug ran air induction service and sent me on my way. Come end of december and car was still having issues w low oil and shakey gear transitions so they gave me a upper engine cleaning service as well as an oil change. Now my oil pressure light keeps going off and I steadily burn through oil. At almost 2x the normal rate because when I last got the oil changed was only 1.5k miles ago.

- Saint Louis, MO, USA

I have a failing engine that excessively consumes oil at the rate of approximately 1qt per 500 miles. The notorious theta2 2.4ltr sonata engine has spewed so much oil into the top half of engine that it had infact so severely damaged the catalytic converter that it became a plug in the exhaust system. The oil consumption issue has destroyed the entire cars engine system and it was infact a ticking time bomb that Hyundai has denied multiple times to repair. After the catalytic converters reached 1700' and Hyundai indicated that it was fine nothing to worry about, we had to physically remove the catalytic converter packing and alow for the engine fumes to exit the car properly, they previously had mainly entering the passenger cabin or they were pushed back into the engine. I according to Hyundai have no warranty on the car, I owe money to my bank Hyundai and the dealership have been paid they have no problem letting me get stuck with a lemon. It's been to the dealership multiple times, campaign 953 engine knock sensor was done on 10/08/21 it has mysteriously found its way out of my car records. Tampering editing, falsifying documents are all illegal and wrong. Since the papers showed that it was done it should have extended the warranty to 10 yes/ 120,000 and I should be reimbursed for my rental fees for being unable to drive my car any distance thousandths of dollars into oil, not being able to get a safety inspection. missing multiple days of work, depreciation ( the dealership that sold me this car 18mo ago valued it at $17,000 09/20, and on 10/08 gave me a $6,000 trade in value) lastly a car in good running condition that is safe for us to use. HYUNDAI IS SELLING DEFECTIVE PRODUCTS AND GETTING AWAY WITH IT EVEN AFTER BEING TAKEN TO COURT AND HAVING MILLIONS OF DOLLARS IN FINES AND PAYOUTS. They are stealing from hard working family's that are already struggling to get by.

- Burdett, NY, USA

Ive tried twice unsuccessfully to have my hyundai sonata recall repairs fixed. First time they said that they were going to order the part, this was around november 2021. Never did get that call. So I called them again to set up an appointment, they gave me an appointment date of 01/26/2022. On that day they told me that they had to cancel because once again they have to order the part.In the mean time my car is running bad with a dealership neglecting this situation, without any concern to how serious and dangerous the outcome could be as described in the court order. The dealership is in Modesto ca. Central Valley Hyundai.

- Pattetrson, CA, USA

The contact owns a 2017 Hyundai Sonata. The contact stated that he would frequently replenish the engine oil due to rapid oil consumption. The failure worsened over time and oil needed to be added more frequently. The contact then took the vehicle to a dealer where he was informed that an oil consumption test needed to be performed. After the oil consumption test was performed, the contact was informed that the engine needed to be replaced. The contact was then informed that the dealer had placed an application to the manufacturer to have the engine replaced; however, the application was declined, and he was informed that the vehicle was out of warranty. The vehicle had yet to be repaired. The failure mileage was approximately 115,000.

- Cleveland, TX, USA

The engine is stalling and shut off at a traffic light. Using oil on a weekly basis. Gas mileage is not efficient at all. No warning the oil pressure is low. The latch on trunk had to be replaced weeks after I purchased the car but I had to replace it cause it would not shut. And now there is a recall.

- Fayetteville , TN, USA

The contact owns a 2017 Hyundai Sonata. The contact stated while driving 25 MPH, the accelerator pedal was depressed seized on the floorboard. The check engine warning light illuminated. The contact stated that the vehicle failed to exceed 25 MPH while driving. The contact veered to the side of the roadway, turned off, and restarted the vehicle; however, the failure recurred while driving. The dealer and the manufacturer were not notified of the failure. The vehicle was not diagnosed or repaired. The approximate failure mileage was 66,000.

- Shepherdsville, KY, USA

The contact owns a 2017 Hyundai Sonata. The contact stated that while attempting to start the vehicle, the vehicle failed to start. The contact mentioned that multiple attempts were made while attempting to start the vehicle. The vehicle was towed by triple AAA. The mechanic was unable to duplicate the failure. The contact mentioned that the vehicle was drove smoothly afterwards however, the failure persisted. The manufacturer was not notified of the failure. The approximate failure mileage was 54,000.

- Newark, NJ, USA

When I was driving, the car began to slow down I was not able to accelarete and the car turned off. I pushed the start button to turn on the car and I saw smoke came from the hood. According to my mechanic it was the starter. We put a new starter, the car didnt star and the smoke was coming from the hood again. I decided to send the car to Hyundai dealer. After two weeks they still didn't call me to know what is wrong with the car. I am still waiting for.

- Westampton, NJ, USA

Manufacturer Recall Number 209 NHTSA Recall Number 21V727000 Incident date: June 15, 2021 While driving on the freeway at approximately 65 MPH, the vehicle stalled with the check engine warning light flashing on the instrument panel, oil could be seen spraying out the back of the car onto traffic which put other drivers/vehicles at risk of an accident. We pulled over into a dirt parking lot, noticed a puddle of oil underneath the car, and then lifted the hood to see oil sprayed all over the engine compartment. I had the vehicle towed to an independent mechanic where the vehicle was diagnosed with engine failure. The vehicle was then towed to a dealer where it remains in their possession as of today which in my opinion is too long to wait without a car, 6 months later from the incident. The manufacturer was notified of the failure June 16th and they informed me that the vehicle did not qualify for any recalls or warranty programs. The vehicle VIN later showed up on the recall campaign in September. Hyundai USA offered to replace the engine at no cost which I am thankful for that so far. However, after the engine replacement, I was told the car would not start, and will require a new battery module and hybrid battery, and that I must pay 40% of the parts and labor at $2776. I believe these parts suddenly failing are directly related to the engine failure incident, and should be part of the recall campaign. My car has yet to be repaired due to backordered parts. I've submitted rental car fee receipts of over $3500 to date without reimbursement because I'm told that it is their policy to only review rental receipts for reimbursement after the repair ticket is closed, with no possibility of interim reimbursement. The Hyundai case manager has told me there is nothing more that they can do, not willing to discuss with another department or Manager, no escalation path forward, and that all I can do is file this complaint with the NHTSA per the recall campaign notification.

- Lathrop, CA, USA

The contact owns a 2017 Hyundai Sonata. The contact stated while driving 65 MPH, the vehicle stalled with the check engine warning light flashing on the instrument panel. The contact pulled over and had the vehicle towed to two separate independent mechanics where the second mechanic diagnosed the vehicle with engine failure. The vehicle was then towed to a dealer where it remained in their possession. The manufacturer was notified of the failure and informed him that the vehicle did not qualify for any recalls or warranty programs. The vehicle had yet to be repaired. The failure mileage was 123,000.

- Lancaster, PA, USA

Vehicle caught fire while undergoing warranty repairs

- Dallas, GA, USA

The contact owns a 2017 Hyundai Sonata. The contact stated upon starting the vehicle, the oil warning light illuminated. The vehicle was taken to the dealer who diagnosed that the oil filter was fractured. The contact stated that the dealer replaced the oil filter and the oil was refilled however, the failure persisted. The vehicle was taken back to the dealer and an unknown part was replaced. The contact stated that the failure recurred, and the vehicle was taken back to the dealer. The dealer diagnosed that the vehicle was consuming an excessive amount of oil. The dealer informed the contact that they would perform an oil consumption test and she would need to bring the vehicle back every 1,000 miles. The dealer-??s report was sent to the manufacturer and the manufacturer opened a case. The manufacturer informed the dealer that the case was closed and advised the dealer to complete an engine cleaning. The engine cleaning was completed; however, the dealer informed the contact that she would need to complete another oil consumption test. The dealer diagnosed that the engine needed to be replaced. The dealer advised the contact that they had sent another report to the manufacturer and the manufacturer had requested pictures of the subframe of the vehicle. The vehicle was not repaired. The approximate failure mileage was 76,000.

- Columbia, SC, USA

I have a car that was purchased that currently has numerous recalls. the automakers have asked me numerous times to bring the car in and pay out of pocket for diagnostic but has yet to fix anything. I am concerned with the safety of the car liked to performance issues that car and maybe linked to the engine recall that is pending.

- Vallejo, CA, USA

The contact owns a 2017 Hyundai Sonata. The contact stated while driving, there was a ticking sound coming from the engine compartment. The vehicle was taken to the local independent mechanic who indicated that no oil was present in the engine. Oil was added to the engine but later while driving approximately 60 MPH, the vehicle suddenly stalled. The vehicle was towed to an independent mechanic who diagnosed that the engine had seized. The vehicle was not yet repaired. The local dealer and manufacturer were notified of the failure. The failure mileage was 56,179.

- St. Louis, MO, USA

Engine oil found to be low at multiple oil changes. So started checking levels 1000 miles after oil change and found oil to be low already at that point. The last check, only 1300 miles after oil change, found vehicle to be down 1.5 quarts. Available for inspection upon request. Because we are checking and replacing the missing oil at the early timeframes of 1000 miles instead of at 7500 miles, no one is in immediate danger (beyond my bank account). The service center has been monitoring the issue for some time. They checked seals, gaskets, and replaced them to be sure they were not the issue. The oil levels still decrease. Upon speaking to a Hyundai rep, he (the manufacturer) claims there is no issue but I should get a diagnostic check up at dealer. I am scheduling one this week. Issues with the local dealer is they charge too much, suggest repairs that are not necessary, and have extended service wait times of at least 3 hours even though I have an appointment. There have been no warning lamps, messages, or actual failures. I am trying to prevent reaching that stage. I do know that my engine is the same one they recalled from earlier models. Those engines were having high oil consumption issues which help lead to more serious safety issues with time. I am wondering how the same engine, with apparently the same issues, was allowed to continue to be used.

- Manor, TX, USA